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Solid State Digital Liquid Level Sensor

Digital Level and DLD Unit  are sold together. 

The Solid State Digital Liquid Level Gauge / Sensors (DL) are built to operate in difficult environments with a life expectancy above 10 years.   The DL uses completely solid state design with no moving parts or open ports making it impervious to clogs, jams, stalls, float deflation and environmental changes in humidity, temperature &  pressure. The DL always delivers the most accurate, real-time level data 100% digitally with constant operational feedback for data you can actually trust.

This product is currently out of stock and unavailable.



  • Measures water level for, gray water, sea water, tap water… and other conductive liquids;
  • Neutral buoyancy (will not float or sink in most fluids);
  • Can be used in pressurized environments;
  • Solid-state technology with no moving parts or open ports;
  • Natural immunity to shock and vibration;
  • Durable nylon casing potted with chemically inert epoxy;
  • Tefzel (M22759/16 spec) double shielded chemically inert connection wire;
  • Integrated upper and lower temperature sensors;
  • Small Cross Section: 0.86” x 0.26” (22mm x 6mm).


Model Information

Model Information

Each DL incorporates 1.68 inch height resolution for each Level Step with 4 models presently available:

Model Name Length (inches) Step Resolution Measurement Area
Model20 18.9 “ 10 16.8 “
Model40 35.7 “ 20 33.6 “
Model60 51.7 “ 30 49.6 “
Model80 67.7 “ 40 65.6 “


All DL models are 0.9” x 0.25” plastic encapsulated (nylon) and potted with chemically inert epoxy. They are designed to be strapped on to a pipe or other non conductive surface, such as PVC pipe or tank surface, etc.



Other sizes and length are available upon request. Please contact factory with specific requirements, packaging and order quantity. We may have them available in stock.

Warranty Info

Warranty Info

Thirty days from date of purchase.

All Products shall be operational upon shipment. Once the Products have been embedded into any device and /or system, the user assumes full responsibility for the continued operation of the Products and no warranty shall apply. All Products are intended for use only by persons familiar with environmental monitoring, electrical codes and embedded electrical engineering techniques. Sam Controllers is not responsible for misuse of its products in conjunction with unsafe or improperly maintained equipment or for uses other than intended environmental monitoring. The Products are warranted to be free from defects in material and workmanship. SAM CONTROLLERS EXPRESSLY EXCLUDES ALL OTHER WARRANTIES NOT EXPRESSLY SET FORTH HEREIN, WHETHER EXPRESSED OR IMPLIED, BY OPERATION OF LAW OR OTHERWISE, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. SAM Controllers shall not be liable for any special, consequential, exemplary, incidental, punitive, or indirect damages, losses or expenses of any kind whatsoever directly or indirectly arising from the sale, handling or use of the Products, or from any other cause relating thereto. SAM Controllers liability hereunder in any case is expressly limited to the replacement (in the form originally shipped) of Products not complying with this Agreement or, at SAM Controllers’ election, to the repayment of, or crediting purchaser or customer with, an amount equal to the purchase price of such Products, whether such claims are for breach of warranty, negligence or otherwise. Any claim by purchaser with reference to the Products sold hereunder for any cause shall be deemed waived by purchaser, and/or its customer, unless submitted to SAM Controllers in writing within (30) days from the earlier of the date of discovery, or the date when discovery should have occurred, of any claimed breach. Warranties provided herein, shall not, in any event extend beyond 30 days following the date of purchase from SAM Controllers.


Thirty days from date of purchase, with a 15% restocking fee.

Data Sheet

DLD Unit Drawings (3D TP & 2D Cad)